Pericles was a great statesman in athens in fifth century b c. He discovered that it's extremely hard to master your emotions when you're in a group setting. If something important, w wha was, had to be decided, he would think twice, three times, four times about it. And so the idea is that you don't understand a lot of the emotions that you feel. You know, you feel angry one moment, o frustrated or excited - and i go into the nuro science of this,. why you're feeling that way.